| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 937.09 | USD | 20250719 |
| Shandong Xima | China national standards | MT | 965.06 | USD | 20250719 |
| Shandong Xima | China national standards | MT | 965.06 | USD | 20250719 |
| Shandong Xima | China national standards | MT | 965.06 | USD | 20250719 |
| Shandong Xima | China national standards | MT | 965.06 | USD | 20250719 |
| Shandong Xima | China national standards | MT | 965.06 | USD | 20250719 |
| Shandong Huize Chem | China national standards | MT | 923.1 | USD | 20250718 |
| Shandong Xima | China national standards | MT | 965.06 | USD | 20250718 |
| Shandong Xima | China national standards | MT | 965.06 | USD | 20250718 |
| Shandong Xima | China national standards | MT | 965.06 | USD | 20250718 |